Catnipthief Rygar said:
»if I take a HDD from one computer, and transplant it to another PC (different hardware) will it recognize the OS and try to boot up... or will it need a reinstall (my friend was asking, i'm kinda sure about the answer but want to get verification) I guess this will help me when I do my build also :p
Are you trying to move a main HD (with say Windows 7 on it) and place it in a second computer to replace that main harddrive, or run it as a secondary?
If you are trying to swap main for main, it should work fine. I've done it before. the OS will boot up without a hitch.
If you are putting a drive with an OS on it as a seocndary HD, then you'll need to load the boot priority in the BIOS so the PC knows which HD to boot from.